Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bui anh du snippets" » "bui manh du snippets", "bui thanh du snippets", "bui khanh du snippets", "bui anh duc snippets", "bui danh du snippets", "bui anh d snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("bui anh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bui anh du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bui anh du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bui anh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.